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https://issues.apache.org/jira/browse/IGNITE-5932?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Ozerov closed IGNITE-5932.
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> Integrate communication with coordinator in tx protocol
> -------------------------------------------------------
>
> Key: IGNITE-5932
> URL: https://issues.apache.org/jira/browse/IGNITE-5932
> Project: Ignite
> Issue Type: Task
> Components: cache
> Reporter: Semen Boikov
> Assignee: Semen Boikov
> Fix For: 2.4
>
>
> Need integrate communication with coordinator in transactions protocol:
> - reading transaction need request read ID from coordinator
> - after locks are acquired need request ID from coordinator
> - this ID should be passed to primary/backups and passed to update
> - after tx is committed need notify coordinator (note: need make sure that
> this notification is processed in such way so that thread executed
> transaction will see all his changes)
> Notes:
> - there are differences in prepare logic for
> optimistic/pessimistic/serializable transactions, so most probably work with
> coordinator should be implemented separately for these tx types
> - need support case when coordinator fails during prepare (need think is
> necessary rollback and retry tx or switch to next assigned coordinator)
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